Abstract Flight delays persist and spread in airport networks due to high interconnectivity in the air transportation infrastructure. How quickly delay propagates between two airports is determined by factors such as the number of flights between airports, the duration of the flight, presence of disruptions, and schedule buffers. Accurate estimation of the time for delay propagation can improve system predictability and reliability. However, noisy airport delay data, along with a lack of visibility into airline scheduling and disruption management strategies, result in a challenging estimation problem for such propagation timescales. We present an algorithm to estimate statistically significant time lags between airport delays from noisy, aggregate operational data. The algorithm uses sliding correlation windows to extract the airport pairs with stable delay lags. We apply our method to identify different timescales of interactions for US airport delays in 2017. Our analysis yields two main results: (1) The most stable lags between airport delays involve the Northeast airports; (2) The stable lags between two airports are negatively correlated to the scheduled flight times between the same two airports. These results regarding delay propagation speeds have potential implications for delay prediction models and airline schedule design.

    Highlights We propose an algorithm to quantify stable time lags between airport delays. We construct two network representations that encode delay interaction timescales. The most stable lags between US airport delays involve the Northeast airports. Airport delays propagate slower than flight durations for short-range airport pairs. Airport delays propagate faster for medium- and long-range airport pairs.


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    Title :

    Timescales of delay propagation in airport networks


    Contributors:


    Publication date :

    2022-03-23




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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